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pjsip_sdp_rtp: Add option endpoint/bind_rtp_to_media_address

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On a system with multiple ip addresses in the same subnet, if a
transport is bound to a specific ip address and endpoint/media_address
 is set, the SIP/SDP will have the correct address in all fields but
the rtp stream MAY still originate from one of the other ip addresses,
most probably the "primary" ip address.  This happens because
 res_pjsip_sdp_rtp/create_rtp always calls ast_instance_new with
the "all" ip address (0.0.0.0 or ::).

The new option causes res_pjsip_sdp_rtp/create_rtp to call
ast_rtp_instance_new with the endpoint's media_address (if specified)
instead of the "all" address.  This causes the packets to originate from
the specified address.

ASTERISK-25632
ASTERISK-25637
Reported-by: Olivier Krief
Reported-by: Dan Journo

Change-Id: I3dfaa079e54ba7fb7c4fd1f5f7bd9509bbf8bd88
This commit is contained in:
George Joseph
2016-01-07 10:57:01 -07:00
parent 188438c53f
commit a41aab477a
7 changed files with 61 additions and 1 deletions
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3
configs/samples/pjsip.conf.sample
View File

@@ -615,6 +615,9 @@
;disallow= ; Media Codec s to disallow (default: "")
;dtmf_mode=rfc4733 ; DTMF mode (default: "rfc4733")
;media_address= ; IP address used in SDP for media handling (default: "")
;bind_rtp_to_media_address= ; Bind the RTP session to the media_address.
; This causes all RTP packets to be sent from
; the specified address. (default: "no")
;force_rport=yes ; Force use of return port (default: "yes")
;ice_support=no ; Enable the ICE mechanism to help traverse NAT (default: "no")
;identify_by=username ; Way s for Endpoint to be identified (default: